[U-Boot] [PATCH 1/4] mmc: fsl_esdhc: get clock directly from global data

[Priyanka Jain]

>-----Original Message-----
>From: Yangbo Lu <yangbo.lu at nxp.com>
>Sent: Tuesday, November 12, 2019 4:59 PM
>To: u-boot at lists.denx.de
>Cc: Peng Fan <peng.fan at nxp.com>; Feng Li <feng.li_2 at nxp.com>; Alison Wang
><alison.wang at nxp.com>; Sumit Garg <sumit.garg at nxp.com>; Priyanka Jain
><priyanka.jain at nxp.com>; Mario Six <mario.six at gdsys.cc>; Y.b. Lu
><yangbo.lu at nxp.com>
>Subject: [PATCH 1/4] mmc: fsl_esdhc: get clock directly from global data
>
>This patch is to get clock directly from global data.
>
>- Remove uclass clk api method. This was what i.MX platforms were
>  using, while QorIQ platforms weren't.
>- Get clock only from global data, dropping mxc_get_clock().
>  QorIQ eSDHC controllers on one silicon use same reference clock.
>
>Signed-off-by: Yangbo Lu <yangbo.lu at nxp.com>
>---
> drivers/mmc/fsl_esdhc.c | 34 ++++------------------------------
> 1 file changed, 4 insertions(+), 30 deletions(-)
>
>diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c index
>8ff84aa..09cb773 100644
>--- a/drivers/mmc/fsl_esdhc.c
>+++ b/drivers/mmc/fsl_esdhc.c
>@@ -12,7 +12,6 @@
> #include <config.h>
> #include <common.h>
> #include <command.h>
>-#include <clk.h>
> #include <errno.h>
> #include <hwconfig.h>
> #include <mmc.h>
>@@ -81,7 +80,6 @@ struct fsl_esdhc_plat {  struct fsl_esdhc_priv {
> 	struct fsl_esdhc *esdhc_regs;
> 	unsigned int sdhc_clk;
>-	struct clk per_clk;
> 	unsigned int clock;
> #if !CONFIG_IS_ENABLED(DM_MMC)
> 	struct mmc *mmc;
>@@ -831,9 +829,6 @@ int fsl_esdhc_mmc_init(bd_t *bis)
> 	return fsl_esdhc_initialize(bis, cfg);  }  #else /* DM_MMC */ -#ifndef
>CONFIG_PPC -#include <asm/arch/clock.h> -#endif  static int
>fsl_esdhc_probe(struct udevice *dev)  {
> 	struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev); @@ -841,7
>+836,6 @@ static int fsl_esdhc_probe(struct udevice *dev)
> 	struct fsl_esdhc_priv *priv = dev_get_priv(dev);
> 	fdt_addr_t addr;
> 	struct mmc *mmc;
>-	int ret;
>
> 	addr = dev_read_addr(dev);
> 	if (addr == FDT_ADDR_T_NONE)
>@@ -853,30 +847,10 @@ static int fsl_esdhc_probe(struct udevice *dev)  #endif
> 	priv->dev = dev;
>
>-	if (IS_ENABLED(CONFIG_CLK)) {
>-		/* Assigned clock already set clock */
>-		ret = clk_get_by_name(dev, "per", &priv->per_clk);
>-		if (ret) {
>-			printf("Failed to get per_clk\n");
>-			return ret;
>-		}
>-		ret = clk_enable(&priv->per_clk);
>-		if (ret) {
>-			printf("Failed to enable per_clk\n");
>-			return ret;
>-		}
>-
>-		priv->sdhc_clk = clk_get_rate(&priv->per_clk);
>-	} else {
>-#ifndef CONFIG_PPC
>-		priv->sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK + dev->seq);
>-#else
>-		priv->sdhc_clk = gd->arch.sdhc_clk;
>-#endif
>-		if (priv->sdhc_clk <= 0) {
>-			dev_err(dev, "Unable to get clk for %s\n", dev->name);
>-			return -EINVAL;
>-		}
>+	priv->sdhc_clk = gd->arch.sdhc_clk;
>+	if (priv->sdhc_clk <= 0) {
>+		dev_err(dev, "Unable to get clk for %s\n", dev->name);
>+		return -EINVAL;
> 	}
>
> 	fsl_esdhc_get_cfg_common(priv, &plat->cfg);
>--
>2.7.4
Reviewed-by: Priyanka Jain <priyanka.jain at nxp.com>